Q2 of 45 Page 544

(i) A metal ‘R’ is found in nature as RCO3. It is used in galvanising iron articles. Name the metal.

(ii) Give any two observations when sodium is dropped in Water.

(i) The material used in galvanising of iron article is Zinc(Zn).


The metal Zn is found in the nature as ZnCO3.


(ii) When the sodium is dropped to water.


a. Due to the reactivity of the sodium undergo exothermic reaction with water and heat is produced.


b. The H2 gas is liberated which burns with a pop sound.


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